CN1257300A - Crt - Google Patents
Crt Download PDFInfo
- Publication number
- CN1257300A CN1257300A CN99127731A CN99127731A CN1257300A CN 1257300 A CN1257300 A CN 1257300A CN 99127731 A CN99127731 A CN 99127731A CN 99127731 A CN99127731 A CN 99127731A CN 1257300 A CN1257300 A CN 1257300A
- Authority
- CN
- China
- Prior art keywords
- tapered segment
- thickness
- cone
- axis
- small size
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
- H01J29/76—Deflecting by magnetic fields only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/861—Vessels or containers characterised by the form or the structure thereof
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
A cathode ray tube with a central tube axis Z includes a panel with an inner phosphor screen and a rear portion. The panel has a substantially rectangular effective screen portion. A funnel is connected to the rear portion of the panel. The funnel sequentially has a body with a large-sized end and a small-sized end, and a cone portion with a large-sized end and a small-sized end. The horizontal thickness Th, the vertical thickness Tv and the diagonal thickness Td of the cone portion of the funnel in the tube axis Z direction satisfy the following condition: Th(z)=Tv(z)>Td(z).
Description
The present invention relates to cathode ray tube (CRT), particularly can improve the CRT of electron beam deflecting efficient effectively.
Usually, CRT comprises having inner fluoroscopic screen dish, the cone of tapered segment is arranged and the neck of electron gun is housed within it, and these parts are sequentially connected mutually.Deflection system is installed in around the tapered segment of cone, to form level and vertical magnetic field at tapered segment.In this structure, electron gun electrons emitted bundle is deflected the level and the vertical magnetic field deflection of system, then shield in phosphor screen.
Recently, CRT has been used for the electronic installation of requirements at the higher level, for example high definition television machine (HDTV) and OA equipment.
On the other hand, in these were used, the power consumption of CRT should reduce, and to obtain energy-efficient, the leakage field that produces because of power consumption also should reduce, and avoids the influence of unwanted electromagnetic wave with the protection user.In order to satisfy these demands, the result is the power consumption that reduce by rights as the deflection system in main consumption source.
On the other hand, in order on screen, to realize the high brightness and the high definition of display image, need to increase the deflection power of deflection system.Specifically, need higher anode voltage to strengthen the brightness of screen, correspondingly, need higher deflecting voltage, the electron beam that the anode voltage that is increased with deflection quickens.And, follow the needs that increase deflection power, need higher frequency to improve the definition of screen.In addition, for the more smooth CRT that realizes being more convenient for using, the reply electron beam carries out wide angle deflection, and the requirement that increases deflection power is arranged thereupon.
In the case, need exploitation to make CRT obtain the technology that high deflection efficiency is kept deflection power simultaneously or reduced deflection power.
For this purpose, the general employing makes its more close electron beam path realize improving the technology of deflection efficiency by deflection system is set.Diameter by reducing neck and the location of realizing deflection system near the external diameter of the cone of neck.But in this structure, the electron beam that imposes on the screen bight bombards the inwall (this phenomenon is commonly referred to " electron beam shade neck " or abbreviates " BSN " as) of the cone of close neck easily.Therefore, the fluorophor that is coated on the corresponding screen angle part is not excited, so that is difficult to obtain high-quality screen picture.
In order to solve such problem, the cone of deflection system is installed in suggestion around it tapered segment should form such shape, wherein circle is changed into rectangle gradually from neck side to the screen dish side of cone.This shape is corresponding to the deflection path of electron beam.In this structure, the size minimum of tapered segment, deflection system can be set at the position of more close electron beam path.
But in above technology, only the tapered segment with cone is designed to rectangular shape, and does not consider the situation of the actual mobile route of electron beam on various directions, therefore, does not solve electron beam shade neck (BSN) by rights.
The object of the present invention is to provide the CRT that can improve electron beam deflecting efficient with suitable structure member effectively.
Of the present invention this can be realized by the CRT with central shaft Z with other purpose.This CRT comprises the screen dish with effective coverage and afterbody.This screen dish has to be had two long limits, two minor faces is being arranged on the vertical axis and effective screen portions of the essentially rectangular at four edges is arranged on the diagonal axis direction on the horizontal axis.Cone is connected with the afterbody of screen dish.This cone comprises the body with large scale end and small size end successively, has the tapered segment of large scale end and small size end.The large scale end sealing-in of body is on the afterbody of screen dish.The small size end of body combines with the large scale end of tapered segment at binding site.The binding site of body and tapered segment is the bending point of cone.Tapered segment has thickness T h on horizontal axis, thickness T v is arranged on vertical axis, and thickness T d is arranged on the diagonal axis direction.The neck sealing-in is on the small size end of tapered segment.Electron gun sets in neck, to produce electron beam.Deflection system is installed in around the tapered segment of cone.Horizontal breadth Th, vertical thickness Tv and diagonal angle thickness T d at the tapered segment of tubular axis Z direction upper cone meet the following conditions: Th (z) ≈ Tv (z)＞Td (z).
Following reference detailed description in conjunction with the accompanying drawings can be understood easilier and understand better and estimate more fully and many additional advantages of the present invention of the present invention, and in the accompanying drawings, identical reference symbol is represented identical or similar part, wherein:
Fig. 1 is the profile of the CRT with screen dish and cone of first preferred embodiment of the invention;
Fig. 2 is the plane graph of screen dish shown in Figure 1;
Fig. 3 is the profile of the tapered segment of cone shown in Figure 1;
Fig. 4 is the curve chart of expression as the varied in thickness of the cone tapered segment shown in Figure 1 of tapered segment position function;
Fig. 5 is the profile of cone tapered segment of the CRT of second preferred embodiment of the invention;
Fig. 6 is another profile of tapered segment shown in Figure 5; With
Fig. 7 is the curve chart of expression as the varied in thickness of the tapered segment shown in Figure 5 of tapered segment position function.
Below, with reference to description of drawings the preferred embodiments of the present invention.
Fig. 1 is the profile of the CRT with screen dish 1 of first preferred embodiment of the invention, and it is for dissecing CRT along the diagonal axis of screen dish 1, and Fig. 2 is the plane graph of screen dish 1 shown in Figure 1.It is the effective screen portions that two minor faces is arranged on two long limits, the vertical direction and the essentially rectangular at four edges is arranged on to the angular direction in the horizontal direction that screen dish 1 has.In the drawings, Z represents the central shaft hereinafter referred to as the CRT of " tubular axis ", H represents the axle hereinafter referred to as the dish of screen in the horizontal direction 1 of " trunnion axis ", V represents the axle hereinafter referred to as the dish of screen in vertical direction 1 of " vertical axis ", D represents the axle of screen dish 1 on to the angular direction hereinafter referred to as " diagonal axis ", and R/L represents the reference line of the electron beam deflecting.Reference line R/L is defined as follows: two lines of drawing from the center of the diagonal edges 7a of phosphor screen 7 and 7b arrive on the tubular axis Z line a bit relative to one another, angle in this tubular axis Z line and this two lines between each bar line all reaches half of maximum deflection angle, represents reference line R/L with the line that vertically passes this point on the tubular axis Z line.
As shown in Figure 1, the screen dish 1 of CRT has inner phosphor screen 7 and afterbody.Cone 3 is connected on the afterbody of screen dish 1.Cone 3 arranged in order have the body 3a of large scale end 30a and small size end 30b, and the tapered segment 3b with large scale end 30c and small size end 30d.Combine with tapered segment 3b at a body 3a of 30e place, the binding site 30e of body 3a and tapered segment 3b becomes the bending point or the so-called circular top (TOR) of cone 3, changes into convex shape (corresponding circle wimble fraction 3b) on the interior curve surface of this place's cone 3 from recess (corresponding body 3a).In the afterbody sealing-in of the large scale end of body 3a 30a upper cone 3 with screen dish 1.The small size end 30d sealing-in of neck 5 and tapered segment 3b.Electron gun 11 quilts are because of fixing in the neck 5, to produce electron beam.Deflection system 9 be installed in cone 3 tapered segment 3b around.
Consider the actual mobile route of electron beam, the tapered segment 3b of cone 3 is designed at diverse location different thickness is arranged.
Specify, the tapered segment 3b of cone 3 has the thickness T h hereinafter referred to as " horizontal breadth " on trunnion axis H direction, having hereinafter referred to as the thickness T v of " vertical thickness " on the vertical axis V direction and thickness T d hereinafter referred to as " diagonal angle thickness " is being arranged on diagonal axis D direction.The dependency relation of Th, Tv and Td meets the following conditions on tubular axis Z direction: Th (z) ≈ Tv (z)＞Td (z).
Fig. 3 is the profile of the tapered segment 3b of cone 3 shown in Figure 1.As shown in Figure 3, with the horizontal breadth Th of tapered segment 3b set the vertical thickness Tv on the convergence tubular axis Z direction, simultaneously greater than diagonal angle thickness T d.
Fig. 4 is the curve chart of expression as the tapered segment 3b varied in thickness of the cone shown in Figure 13 of tapered segment 3b position function.In this curve chart, the position with numeric representation tapered segment 3b is decided to be 0. 0 with reference line R/L simultaneously.
As shown in Figure 4, constitute tapered segment 3b like this, make that horizontal breadth Th and vertical thickness Tv are non-to be increased monotonously or reduce, bending point 30e this horizontal breadth Th and vertical thickness Tv from the small size end 30d of tapered segment 3b to cone 3 have one or more maximum P1.On the contrary, diagonal angle thickness T d increases monotonously or reduces less than horizontal breadth Th and vertical thickness Tv are non-, and has at least one minimum value P2.
With the variable Δ Td of the diagonal angle thickness T d between reference line R/L and the bending point 30e set greater than it at the small size end 30d of tapered segment 3b and the variable between the reference line R/L.
Because electron beam shade neck phenomenon mainly occurs between the small size end 30d and reference line R/L of tapered segment 3b when the wide angle deflection of electron beam, so require the diagonal angle thickness T d should be in small range.Therefore, in this preferred embodiment, set the variable Δ Td of the small size end 30d of tapered segment 3b and the diagonal angle thickness T d between the reference line R/L less.
By this way, tapered segment 3b is designed to have the thickness corresponding to the change of electron beam Actual path, thus the electron beam that is deflected do not clash into tapered segment 3b inner surface and the screen on the suitable fluorophor on the phosphor screen 7.
In addition, because this structure of tapered segment 3b, the 9 pairs of electron beams by tapered segment 3b of deflection system around tapered segment 3b apply actual influence, this means the power that can reduce deflection beam, cause minimum power consumption.
Fig. 5 and Fig. 6 are the figure of tapered segment of the CRT cone of expression second preferred embodiment.In this preferred embodiment, all parts of CRT are identical with first preferred embodiment, and just the tapered segment 3b of cone 3 is formed from the small size end to its cross sectional shape of large scale end by circle to change non-circularly.
As shown in Figure 5, the cross sectional shape of circular is arranged, so that it has the diameter identical with neck 5 with the small size end 30d of the tapered segment 3b of neck 5 sealing-ins.On the contrary, as shown in Figure 6, the large scale end 30c of tapered segment 3b has the non-circular cross sectional shape resemble the rectangle.
As in first preferred embodiment, the tapered segment 3b of the cone 3 of this preferred embodiment is designed to have the thickness that changes on all directions.
As shown in Figure 6, the tapered segment 3b of cone 3 thickness on trunnion axis H direction is Th, and thickness is Tv on vertical axis V direction, and thickness is Td on diagonal axis D direction.The dependency relation of Th, Tv and Td meets the following conditions on tubular axis Z direction: Tv (z)＞Th (z)＞Td (z).
When electron beam is deflected system's 9 deflections, in the allowance of the electron beam deflecting on the vertical axis V direction greater than the deflection allowance on trunnion axis H direction and diagonal axis D direction.Therefore, in this preferred embodiment, set vertical thickness Tv less than horizontal breadth Th and diagonal angle thickness T d.
Fig. 7 is the curve chart of expression as the tapered segment 3b varied in thickness shown in Figure 5 of tapered segment 3b position function.In the figure, with the position of numeric representation tapered segment 3b, and reference line R/L is decided to be 0. 0.
As shown in Figure 7, constitute tapered segment 3b like this, horizontal breadth Th and the vertical thickness Tv bending point 30e from the small size end 30d of tapered segment 3b to cone 3 is increased monotonously or reduce.On the contrary, diagonal angle thickness T d is non-to be increased monotonously or reduces, and has at least one minimum value P3.
In addition, in this preferred embodiment, poor Th-Td, vertical thickness Tv between horizontal breadth Th and the diagonal angle thickness T d and poor Tv-Th, vertical thickness Tv between the horizontal breadth Th and the poor Tv-Td between the diagonal angle thickness T d constitute tapered segment 3b like this, so that should be the maximum of distance reference line R/L in 5mm or the following scope of 5mm.Can think that this is the Actual path of electron beam, and be accessible minimum diagonal angle thickness T d at the maximum deflection scope of electron beam.
Set greater than at the small size end 30d of tapered segment 3b and the variable between the reference line R/L at the variable Δ Td of the diagonal angle thickness T d between reference line R/L and the bending point 30e.In addition, the correlation of the variable Δ Td of the variable Δ Th of variable Δ Tv, the horizontal breadth Th of vertical thickness Tv and diagonal angle thickness T d is set to such an extent that meet the following conditions between the small size end 30d of tapered segment 3b and reference line R/L: Δ Tv＞Δ Th＞Δ Td.On the contrary, the correlation of the Δ Tv between reference line R/L and bending point 30e, Δ Th and Δ Td is set to such an extent that meet the following conditions: Δ Td＞Δ Th＞Δ Tv.
As first preferred embodiment, the tapered segment 3b of the cone 3 of the CRT of second preferred embodiment of the invention is designed to have the thickness corresponding to the change of electron beam Actual path, thus the electron beam that is deflected do not clash into tapered segment 3b inner surface and the screen on the suitable fluorophor on the phosphor screen 7.
As mentioned above, by making thickness relationship the best of tapered segment diverse location, CRT of the present invention can improve electron beam deflecting efficient effectively.
More than, describe the present invention in detail with reference to preferred embodiment, but those skilled in the art should understand, can carry out various improvement and conversion and can not break away from the spirit and scope of the present invention that claims limit.
Claims (10)
1. the cathode ray tube that central shaft Z is arranged is characterized in that, this cathode ray tube comprises:
Screen dish with inner phosphor screen and afterbody, this screen dish have to be had two long limits, two minor faces is being arranged on the vertical axis and effective screen portions of the essentially rectangular at four edges is arranged on the diagonal axis direction on the horizontal axis;
The cone that is connected with the afterbody of screen dish, this cone comprises the body with large scale end and small size end successively, and tapered segment with large scale end and small size end, the large scale end sealing-in of body is on the afterbody of screen dish, the small size end of body combines with the large scale end of tapered segment at binding site, the binding site of body and tapered segment is the bending point of cone, tapered segment has thickness T h on horizontal axis, thickness T v is arranged on vertical axis, thickness T d is arranged on the diagonal axis direction;
The neck of sealing-in on the small size end of tapered segment;
Be contained in the electron gun in the neck, to produce electron beam; With
Be installed in the tapered segment deflection system on every side of cone;
Wherein, horizontal breadth Th, vertical thickness Tv and the diagonal angle thickness T d at the tapered segment of tubular axis Z direction upper cone meets the following conditions: Th (z) ≈ Tv (z)＞Td (z).
2. cathode ray tube as claimed in claim 1, it is characterized in that, tapered segment has the reference line of the electron beam deflecting, this reference line is defined as follows: two lines of drawing from the center of the diagonal edges of effective screen portions of screen dish arrive on the tubular axis Z line a bit relative to one another, angle between each line of this tubular axis Z line and these two lines reaches half of maximum deflection angle, represent reference line R/L with the line that vertically passes this point on the tubular axis Z line, at the diagonal angle thickness T d (z) of tapered segment on the tubular axis Z direction in the reference line of cone and the change degree between the bending point greater than in the small size end of tapered segment and the change degree between the reference line.
3. the cathode ray tube that central shaft Z is arranged is characterized in that, this cathode ray tube comprises:
Screen dish with inner phosphor screen and afterbody, this screen dish have to be had two long limits, two minor faces is being arranged on the vertical axis and effective screen portions of the essentially rectangular at four edges is arranged on the diagonal axis direction on the horizontal axis;
The cone that is connected with the afterbody of screen dish, this cone comprises the body with large scale end and small size end successively, and tapered segment with large scale end and small size end, the large scale end sealing-in of body is on the afterbody of screen dish, the small size end of body combines with the large scale end of tapered segment at binding site, the binding site of body and tapered segment is the bending point of cone, tapered segment has thickness T h on horizontal axis, thickness T v is arranged on vertical axis, thickness T d is arranged on the diagonal axis direction;
The neck of sealing-in on the small size end of tapered segment;
Be contained in the electron gun in the neck, to produce electron beam; With
Be installed in the tapered segment deflection system on every side of cone;
Wherein, the horizontal breadth Th of the tapered segment on tubular axis Z direction and vertical thickness Tv are non-to be increased monotonously or reduces, respectively have one or more maximums, increase monotonously or reduce and the diagonal angle thickness T d of the tapered segment on tubular axis Z direction is non-, and have at least one minimum value.
4. cathode ray tube as claimed in claim 3, it is characterized in that, tapered segment has electron beam deflecting reference line, this reference line is defined as follows: two lines of drawing from the center of the diagonal edges of effective screen portions of screen dish arrive on the tubular axis Z line a bit relative to one another, angle between each line of this tubular axis Z line and these two lines reaches half of maximum deflection angle, represent reference line R/L with the line that vertically passes this point on the tubular axis Z line, at the diagonal angle thickness T d (z) of tapered segment on the tubular axis Z direction in the reference line of cone and the change degree between the bending point greater than in the small size end of tapered segment and the change degree between the reference line.
5. the cathode ray tube that central shaft Z is arranged is characterized in that, this cathode ray tube comprises:
Screen dish with inner phosphor screen and afterbody, this screen dish have to be had two long limits, two minor faces is being arranged on the vertical axis and effective screen portions of the essentially rectangular at four edges is arranged on the diagonal axis direction on the horizontal axis;
The cone that is connected with the afterbody of screen dish, this cone comprises the body with large scale end and small size end successively, and tapered segment with large scale end and small size end, the large scale end sealing-in of body is on the afterbody of screen dish, the small size end of body combines with the large scale end of tapered segment at binding site, the binding site of body and tapered segment is the bending point of cone, tapered segment has from the small size end to the large scale end, be changed to the non-circular cross sectional shape that resembles rectangle by circle, tapered segment has thickness T h on horizontal axis, thickness T v is arranged on vertical axis, thickness T d is arranged on the diagonal axis direction;
The neck of sealing-in on the small size end of tapered segment;
Be contained in the electron gun in the neck, to produce electron beam; With
Be installed in the tapered segment deflection system on every side of cone;
Wherein, horizontal breadth Th, vertical thickness Tv and the diagonal angle thickness T d at the tapered segment of tubular axis Z direction upper cone meets the following conditions: Tv (z)＞Th (z)＞Td (z).
6. the cathode ray tube that central shaft Z is arranged is characterized in that, this cathode ray tube comprises:
Screen dish with inner phosphor screen and afterbody, this screen dish have to be had two long limits, two minor faces is being arranged on the vertical axis and effective screen portions of the essentially rectangular at four edges is arranged on the diagonal axis direction on the horizontal axis;
The cone that is connected with the afterbody of screen dish, this cone comprises the body with large scale end and small size end successively, and tapered segment with large scale end and small size end, the large scale end sealing-in of body is on the afterbody of screen dish, the small size end of body combines with the large scale end of tapered segment at binding site, the binding site of body and tapered segment is the bending point of cone, tapered segment has from the small size end to the large scale end, be changed to the non-circular cross sectional shape that resembles rectangle by circle, tapered segment has thickness T h on horizontal axis, thickness T v is arranged on vertical axis, thickness T d is arranged on the diagonal axis direction:
The neck of sealing-in on the small size end of tapered segment;
Be contained in the electron gun in the neck, to produce electron beam; With
Be installed in the tapered segment deflection system on every side of cone;
Wherein, tapered segment has electron beam deflecting reference line, this reference line is defined as follows: two lines of drawing from the center of the diagonal edges of effective screen portions of screen dish arrive on the tubular axis Z line a bit relative to one another, angle between each line of this tubular axis Z line and two lines reaches half of maximum deflection angle, represent reference line R/L with the line that vertically passes this point on the tubular axis Z line, the horizontal breadth Th of tapered segment and vertical thickness Tv are non-on tubular axis Z direction increases monotonously or reduces, and increases monotonously or reduces and have at least one minimum value and the diagonal angle thickness T d of the tapered segment on tubular axis Z direction is non-.
7. cathode ray tube as claimed in claim 6, it is characterized in that it is maximum in 5mm or the following scope of 5mm that poor Th-Td, vertical thickness Tv between horizontal breadth Th and the diagonal angle thickness T d and poor Tv-Th, the vertical thickness Tv between the horizontal breadth Th and the poor Tv-Td between the diagonal angle thickness T d respectively have apart from reference line.
8. cathode ray tube as claimed in claim 6, it is characterized in that, tapered segment has the reference line of the electron beam deflecting, this reference line is defined as follows: two lines of drawing from the center of the diagonal edges of effective screen portions of screen dish arrive on the tubular axis Z line a bit relative to one another, angle between each line of this tubular axis Z line and two lines reaches half of maximum deflection angle, represent reference line R/L with the line that vertically passes this point on the tubular axis Z line, at the diagonal angle thickness T d (z) of tapered segment on the tubular axis Z direction in the reference line of cone and the change degree between the bending point greater than in the small size end of tapered segment and the change degree between the reference line.
9. cathode ray tube as claimed in claim 6, it is characterized in that the correlation of the variable Δ Td of the variable Δ Th of variable Δ Tv, the horizontal breadth Th of vertical thickness Tv and diagonal angle thickness T d meets the following conditions between the small size end of tapered segment and reference line: Δ Tv＞Δ Th＞Δ Td.
10. cathode ray tube as claimed in claim 6, it is characterized in that the correlation of the variable Δ Td of the variable Δ Th of variable Δ Tv, the horizontal breadth Th of vertical thickness Tv and diagonal angle thickness T d meets the following conditions between reference line and bending point: Δ Td＞Δ Th＞Δ Tv.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980048060A KR100334015B1 (en) | 1998-11-10 | 1998-11-10 | Cathode ray tube |
| KR48060/1998 | 1998-11-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1257300A true CN1257300A (en) | 2000-06-21 |
| CN1145188C CN1145188C (en) | 2004-04-07 |
Family
ID=19557760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991277317A Expired - Fee Related CN1145188C (en) | 1998-11-10 | 1999-11-10 | Crt |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6528936B1 (en) |
| JP (1) | JP4520558B2 (en) |
| KR (1) | KR100334015B1 (en) |
| CN (1) | CN1145188C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349251C (en) * | 2004-03-05 | 2007-11-14 | 松下东芝映象显示株式会社 | Cathode ray tube |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100403773B1 (en) * | 2001-07-13 | 2003-10-30 | 엘지.필립스디스플레이(주) | The C-CRT Having the Magnet for Correcting |
| KR100447662B1 (en) * | 2002-05-10 | 2004-09-07 | 엘지.필립스디스플레이(주) | Crt |
| KR100439270B1 (en) * | 2002-05-15 | 2004-07-07 | 엘지.필립스디스플레이(주) | A Funnel Structure of The CRT |
| KR100434409B1 (en) * | 2002-05-29 | 2004-06-04 | 엘지.필립스디스플레이(주) | Structure for cathode ray tube |
| KR100502465B1 (en) * | 2002-06-21 | 2005-07-20 | 엘지.필립스 디스플레이 주식회사 | Crt |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4834349B1 (en) * | 1969-11-04 | 1973-10-20 | ||
| JPS58225545A (en) * | 1982-06-24 | 1983-12-27 | Toshiba Corp | Color picture tube |
| JPS59189541A (en) * | 1983-04-11 | 1984-10-27 | Toshiba Corp | Cathode ray tube |
| NL8902674A (en) * | 1989-10-30 | 1991-05-16 | Philips Nv | METHOD FOR MANUFACTURING AN IMAGE TUBE, IMAGE TUBE MANUFACTURED BY SUCH A METHOD AND IMAGE TUBE |
| US5568011A (en) * | 1995-02-15 | 1996-10-22 | Thomson Consumer Electronics, Inc. | Color picture tube faceplate panel |
| US5751103A (en) * | 1996-08-13 | 1998-05-12 | Thomson Consumer Electronics, Inc. | Color picture tube having improved funnel |
| JP3442975B2 (en) * | 1996-09-18 | 2003-09-02 | 株式会社東芝 | Cathode ray tube device |
| JPH10154472A (en) * | 1996-09-30 | 1998-06-09 | Toshiba Corp | Cathode-ray tube apparatus |
| TW428787U (en) * | 1998-03-09 | 2001-04-01 | Koninkl Philips Electronics Nv | Picture display device comprising a display tube having an evacuated envelope and conical portion for use therein |
| KR100309763B1 (en) * | 1998-11-10 | 2001-12-17 | 김순택 | Cathode Ray Tube |
| KR100277798B1 (en) * | 1999-01-08 | 2000-12-15 | 김순택 | Cathode ray tube |
| KR100599702B1 (en) * | 2000-01-12 | 2006-07-12 | 삼성에스디아이 주식회사 | Device for providing reduced convergence drift of CRT |
-
1998
- 1998-11-10 KR KR1019980048060A patent/KR100334015B1/en not_active IP Right Cessation
-
1999
- 1999-11-05 US US09/435,275 patent/US6528936B1/en not_active Expired - Fee Related
- 1999-11-10 CN CNB991277317A patent/CN1145188C/en not_active Expired - Fee Related
- 1999-11-10 JP JP31897499A patent/JP4520558B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349251C (en) * | 2004-03-05 | 2007-11-14 | 松下东芝映象显示株式会社 | Cathode ray tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1145188C (en) | 2004-04-07 |
| JP4520558B2 (en) | 2010-08-04 |
| KR20000031831A (en) | 2000-06-05 |
| US6528936B1 (en) | 2003-03-04 |
| JP2000149828A (en) | 2000-05-30 |
| KR100334015B1 (en) | 2002-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0810627B1 (en) | Cathode ray tube | |
| EP0813224B1 (en) | Cathode ray tube with deflection yoke and improved funnel shape | |
| CN1165949C (en) | Cathod ray tube | |
| US6359379B1 (en) | Cathode ray tube having funnel with flute sections | |
| CN1061465C (en) | Deflection yoke with a pair of magnets near its minor axis | |
| CN1145188C (en) | Crt | |
| CN1131543C (en) | Cathode-ray tube | |
| US6380668B1 (en) | Cathode ray tube | |
| CN1128463C (en) | Cathode ray tube | |
| CN1138298C (en) | Cathode ray tube | |
| CN1106667C (en) | Picture display device provided with electron gun, and electron gun for use in such a device | |
| CN1278367C (en) | Cathode ray tube | |
| JP2000100350A (en) | Cathode-ray tube | |
| JP2000113840A (en) | Cathode-ray tube | |
| US20020084739A1 (en) | Cathode ray tube with a deflection unit having a particular cross-sectional configuration | |
| US6495954B1 (en) | Cathode ray tube having reduction in deflection power consumption relative to funnel condition | |
| US20060049739A1 (en) | Cathode ray tube | |
| KR100612314B1 (en) | Cathode ray tube | |
| CN1655314A (en) | Cathode-ray tube apparatus | |
| CN1758411A (en) | Cathode ray tube (crt) | |
| KR20000041070A (en) | Cathode ray tube | |
| CN1425185A (en) | Color display device with deflection-dependent distance between outer beams | |
| KR20010001067A (en) | A cathode ray tube | |
| KR20030084053A (en) | Deflection apparatus for cathode ray tube | |
| KR20040105936A (en) | Cathode ray tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040407 Termination date: 20111110 |